After observing a demonstration of a chemical reaction between a burning candle and the oxygen in the air, students use atom model cut-outs to model the reaction and see that all the atoms in the reactants show up in the products.

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Concepts

combustion, conservation of mass, chemical reactions

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Additional Tags

conservation of matter, product of chemical change, ms-ps1-2, middle school chemistry: lesson plans: what is a chemical reaction?, chemical bond, chemical change, chemical reaction, physical change, reactant

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Classroom Considerations

Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
The intended use for this resource is Instructional|practice

NGSS

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